On the detailed analysis of the 2nd chapter , and curving the difference of conditions and developing phase of rbc , i find the duple dynamics and duple mechanism of chinese rbc , then have two phasical model : base model and structure shifting model . after a delicate depicture of their different characters and developing mechanism , i found three endogentic variables controlling rbc development : resource , location and dimensions 为此，本文通过对上一部分资源型城市发展特征研究成果的详细分析，并对比国内外资源型城市演化过程和条件的差异，提出了中国资源型城市发展的双重动力和双重机制，并在此基础上概括了中国资源型城市发展演化的两种阶段性模式：基地模式和转型模式。
